Ability to fetch subscriptions by email and/or customer_id

At the minute a client can subscribe on Creeme, but for whatever reason (e.g. server outage, blackout, lost or corrupted packets etc) the event might never be registered by the merchant.

AFAIK, there isn’t an API method to reconfirm subscriptions without having the subscription.

Basically the solution would pass by adding an endpoint that would take customer_id or email to query by and return an array of subscriptions in place of a stand alone sub.